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I've got some major bugs going on. If anyone has been through similar problems or knows what's wrong let me know. Battery is new also. From a cold start car runs perfect. Gearbox works correctly including sports shift. Now if I drive like my Grandma everything seems ok, but its because the bug isn't activated yet. Its usually 15 minutes later, and after giving it some beans, but not even WOT, it first tell tale sign will be a deep thump into third. Within a few minutes of the thump, It wont change from second to third.. I will then flip back between drive and sports maybe 5-10 times, with a light pedal, it usually goes into third. But this option is short lived and getting third soon disappears. If I get third and leave it in drive it will up/down change between third/forth as normal or downchange to second/first. If in sports it will change up/down between forth and third, or downchange to second or first no problem. But, when slowing down and it down changes back to second, or I choose second through sports or its kicked down to second. I'm back at the bloody start again and it wont go back to third. The only way it ever goes to third is in drive but now it has to rev to around 4900-5200 rpm before it hits third. This is not with WOT or anything, it just gets stuck in second. As it continually gets worse, soon enough no matter how much flipping in and out of sports it completely refuses to go to third at all. I have noticed if I start driving like my grandma again about 10 mins later, I can sometimes get it to go to third flipping back and forth again, but its never a definite. On top of this the motor starts pinging as well. Cold it has no pings, it doesn't happen until the dreaded thump. I have reflashed the tuner with a different tune when hot and it makes no difference to the pinging or third gear working properly. Another problem associated after the thump is it starts to stall when I pull up. The rev's will be like the transmission is not disengaging or its grabbing and sometimes stalls, again I don't have any problems like this until the dreaded thump. Used to have a piggyback, it died. I then had PCM checked, passed, updated and normal tune installed so it would start. Car was then SCT tuned. I get no codes! This box was brought reconditioned and has done it from day one. Have talked to Auto experts, told me its valvebody in transmission because of no codes. History - After I brought the car I drove it back home over two days, distance was one thousand kays. Original box used to kick down dramatically with stuff all throttle, but driving home changed gear normally and in sports. Next day after I got it home, I had no third or forth whatsoever that's why the gearbox was replaced. Never had any pinging issues or stalls with the old box. I always swore new computer cars were sh*t! I miss my Torana! Anyone??